CHEMISTRY COMMUNITY

sid bauer

What were the limitations for the Henderson-Hasselbach equation? In other words, when can it NOT be calculated? (i.e. when acids/bases are strong/weak) Also, to get rid of the logs, you can simply raise everything to the power of 10 correct? I've used it for other equations but I'm not sure if you c...

sid bauer

In some of the equilibrium HW problems, they have you "refer to Table 11.2." Does anyone know if we need to memorize those values/we will get them on the Exam?

sid bauer

Thanks! Do you know the formula off hand by chance? I'm currently searching for it haha

sid bauer

What is the significance of the % decomposition?

sid bauer

thanks so much!

sid bauer

I'm having a difficult time understanding how equilibrium shift from temperature. Are there any easy concept to remember for solving these problems? Let me know if I need to clarify

sid bauer

I understand that when you apply the quadratic formula, you get two values (one of which is typically negative). What is the concept behind the reason why you would NOT use the negative number to plug back into the equilibrium equation?

sid bauer

So after practicing Lewis Structure, I've realized some atoms such as S, C and O create double bonds more often than others. What is the reasoning behind that?

sid bauer

Does that apply for all row 3 atoms? That they can all accept more than 8 electrons? If so, can they all accept a total of 10, just like Sulfur?

Thanks

sid bauer

When mixing orbitals with one another, do you always need similar energies as well as similar symmetry between bonds? If not, what would happen? would they simply not bond?

Thanks!

sid bauer

Why does the order of Molecular Orbital energies change as they cross the second row diatomic?

sid bauer

NEED CLARIFICATION: How do you calculate bond order? And what does it mean in terms of chemistry? Can bond order be calculated for just one atom, or does it have to be two atoms joined together?

Thank you!

sid bauer

In terms of equations, the equation for the first ionization of energy is: Na --> Na+ + e-. Whereas the equation for the second ionization of energy is: Na+ --> Na2+ + e-. Also, it takes MORE energy for the second ionization of energy!

Hope this helps!

sid bauer

Can somebody please explain Fajan's Rules of Polarization? What are the trends in charges, anions and cations?

Thank you!

sid bauer

How do you determine whether the octect rule is exceeded? And where do you assign those extra pairs?

sid bauer

Because Neutrons behave like a wave can we use the equation E = mc^2 to find the energy of the neutron if we know the mass of the neutron?

sid bauer

The amplitude of a wave is directly related to how high energy the wave is.

Think as if you were creating waves on a string fixed at the other end. The harder you jerk it(the more energy you put in) the higher the amplitude of the wave you created will be.

sid bauer

Also the term electron volt is self defining in that 1 eV is literally the charge of one electron times 1 Volt.
(1.6 x 10 ^-19 C) * (1 kg m^2 s^-2 C^-1) = 1.6 * 10^-19 J

In reality it is just about having ease of units more than anything else

Hope this helps!

sid bauer

So I know that the sign of the Quantum Spin Number defines the direction of the spin, but why is the Quantum Spin Number only equal to +/- 1/2 instead of being +/- 1?

sid bauer

Curious. If a photon does not have enough energy to emit an electron from a metal surface, where does that energy go? Does it get stored as potential energy? Or does it simply just escape and become irrelevant?

CHEMISTRY COMMUNITY

Search found 20 matches

Limitations to the Henderson-Hasselbach Eq

Question about the exam

Re: Decomposition

Decomposition

Re: Temperature

Temperature

Quadratic formula

double bonds

Re: Octets

Mixing Orbitals

Second row Molecules

Bond Order

Re: 1st and 2nd ionization energy? [ENDORSED]

Fajan's Rule

Exceeded Octet

Re: Neutrons

Re: Amplitude of the wave [ENDORSED]

Re: What is the eV unit? [ENDORSED]

Quantum Spin Number

electrons